neighborhood: Neighborhood dispersal probability matrix.

In matthewkling/stranger: Demographic species range modeling with dispersal

Neighborhood dispersal probability matrix.

Description

This function uses numerical integration of a dispersal kernel to construct a matrix representing the probability that dispersal originating in a given grid cell will arrive at each cell across its neighborhood.

Usage

neighborhood(kernel, diameter = 7, cell_res, method = "area", res = 11)

Arguments

kernel	A dispersal kernel object, e.g. generated by species_template()$kernel. Note that the kernel function must already be area-adjusted by incorporating a denominator of 2*pi, as has been done for the included functions dlognormal, d2Dt, and dexponential. Distance units are assumed to be in meters.
diameter	Neighborhood size, in grid cells (odd integer).
cell_res	Grid cell size, in meters.
method	Either "area" (default), "area-centroid", or "centroid"; see Chipperfield et al. (2011).
res	Resolution for numerical integration (odd integer).

Value

A matrix of dispersal probabilities.

matthewkling/stranger documentation built on Feb. 25, 2024, 2:31 p.m.